Liquid-fuel burner



June 18, 1929. x WlLcOX 1,717,484

LIQUID FUEL BURNER Filed No' v. 20, 1926 2 Sheets-Sheet 1 g 23 35' A? 25 3 x a 1 fa o o L jooocb {Z 0-9000 J3,

c-qooo f I i 1 n n g n I l 31 INVENTOR ZewzIrTII i'lmx June 18, 1929. w Lcox 1,717,484

LIQUID FUEL BURNER Filed Nov. 20, 1926 2 Sheets-Sheet 2 4 v 21 imam 2y INVENTOR l atente d June 18, 1929.

UNITED STATES] 1,717,484 PATENT OFFICE.

LEWIS 'r. wrnoox, orrEEKsKILL, NEW YORK, ASSIGNOR ro WILCOX re'rnn'rs con IPORATION, or PEEKSKILL, NEW YORK, A CORPORATION on NEW YORK.

LIQUID-FUEL BURNER.

Application filed November 20, 1926. Serial No. 149,552. I

. My present invention relates to a liquid fuel burner and more particularly to the construction of the air distributor. Heretofore, because the positions of the wick and the walls in which the same is contained are sometimes slightly eccentric and because of drafts or irregular air currents the air necessary for the combustion of the fuel is not evenly distributed to the wick, that-is at the point where the fuel vaporizesand is burned. Theobject of my present invention is to overcomethese difliculties and in so doing to construct the air distributor member in such a manner that substantially equal and proper amounts of air are supplied at all points of the wick in order to obtain an evenand uniform'flame and thereby necessarily to obtain a corresponding-.-

ly uniform distribution of the heat produced "by the burner when in use. In carrylng out the invention the burner includes an air dis tributor preferably comprising a. cylindrical member, a drum associated therewith to provide substantially annular and concentric spaces between the exterior of the cylindrical member and theinner walloi' the burner,-to-

gether with partition wallsdividing the in directed into each compartment is confinedv thereto and. flows directly therefrom to the pointv of vaporization and ignition at the up-v per end of the wick to provide the necessary or required amount of air for substantially perfect combustion of the fuel.

In the drawing Figure 1 is a central longitudinal section illustrating a liquid fuel burnermade in accordance with my present invention.

Fig. 2. isa. plan of the same.

Fig. 3 is a section on line i -3, Fig. 1 and Fig. 4: is a view illustrating the several parts comprising the air distributor before the same are assembled.

Referring to the drawing the liquid fuel burner made in accordance withthis inven- .tionincludes-the usual inner and Outer burner 50 tubes 10 and 11 respectively between which there is a Wick 12 which may be raised and lowered: by any of the devices known to the art. The inner tube 10 in a suitable position is provided with an internal flange 13 for supportingthe air distributor as hereinafter descr bed, and theouter-tube 11 in a suitable position preferably somewhat.- below the flange 13 is providedwith an external flange 14. This flange 14 cooperates with suitably spaced arms 15 carried by a collar 16 for positioning the collar, the collar being employed to support the casingof the burner in the customary 1112121111612.

The air distributor to which the present invention more particularly relates consists of a multiplicity of parts including a cylindrical member 17 in the walls'oifwhich there are suitably spacedapertures 18. At the upper or outer end oithecylinder the, same is flanged internally as indicated at Hand so made. asto havea'centrally disposed opening 20. Fitted on the upper or outer end-of the cylindrical member 17there is a cap or I spreader member 21. A short portionoir' this cap or spreader member is cylindrical as indicated at 22 so as to fit over the upper or outer end of the cylindrical member 17 to which it is suitably connected by indentations 23 or otherwise. The air distributor also in cludes a drum; 24 in the cylindrical bodypor tion of which there are suitably spaced aper hires 25- At the upper or outer end the drum is: formed with aninvertedU shaped flange j 26' which is of slightly smaller diameter than j the spreader memberand is adapted to lie immediately within the upper or outer. end

of the inner burner tube 10. The air distributor also includes-a base member 27. This member has an aperture through its center and is providedwith a downwardly extend ing flange 28 adapted to receive the lower end pf thecyliudricali member 17. Its outer edge terminates in an inverted U shaped flange 29, (Fig. the inner wall of which is of sub. stantially the same diameter as the outer diameter of the; cylindrical portion of the drum- 24: so that thedrum 24 fits within this outer peripheral flange of the base 27 The outer wall of the flange 29 is of substantially the same: diameter as the diameter of the inner face; of the inner tube 10 so that when theair distributor is inposition theouter wall of the flange 29 of the base member rests upon the;

peripheral flangethereofis provided with a i 7 series of spaced apertures indicatedat 30, and

'wall forming part of the inverted peripheral as indicated in the drawing the transverse flange 29 of the basev member is also provided with spaced apertures as indicated at 31. The base member 27 is suitably connected to the cylindrical member 17, and as illustrated, this connection may be made by suitably spaced indentations indicated at 32.

This construction provides for an annular air distributing chamber 33 between the outer surface of'the cylindrical memberl? andthe inner surface of the drum 24- and also for a concentric annular chamber3 l surrounding the chamber 33 and lying between the outer wall of the drum Qeland the adjacent portion Y of the inner wall of the inner burner tube 10.?

The annular space or chamber 33 consti- I tutes a passage by Which the necessary air is caused to pass and to be delivered to the flame to properly support combustion of the'fuel "and in' order to provide an even distribution of the air to all points in the flame this annular chamber is divided into a plurality, of sections. This feature is accomplished by the use ofa series of wings or partition walls as indicated at Theupper edge'of each of these walls is inclined tocorrespond with the inner face, of that portion of the spreader member which extends over the annular chamber 33 as indicated at 36, and each of *thesepartition' walls adjacent the upper end secured in position in any suitable manner.

thereof is furthermore provided with an extension37 adapted to'lie across theupper portion of thefl'ange 26of'the drum member 2&1; These wings or partition walls may be As indicated however, they are not only maintained in position but assist inconnecting'the drunito the base and the cylindrical member of the air distributor.

" wingsis provided at its outer edge with a tongue or lug 38 adapted to'pass through a slot 39 provided therefor in the wall of the body of the drum 24 and with a tongue or lug 40 at its lower end adapted to pass through a slot 41 provided therefor in that portion of the base between theflange 28r-and the flange 29 thereof. These tongues38; and 40 may be turned down after being passed through the respective slots provided therefor in order to secure the partition walls or wings in place and to assist in connectingthe parts of the distributor to one another as hereinbefore stated. o

In the structure as hereinbefore described,

i it will now be apparent that the supply of air passing upwardly into the inner tube 10 of the burner is distributed into several paths, part of the airpasses into the cylindrical member 17 and through the apertures 18 therein to the'annular chamber 33; another part of the air'passes through the apertures 30 directly into the annular chamber; and

stillanother part ofthe air'passes through Each of these 1,717,484 a I l the apertures 31 into the annular chamber 34 and through the apertures 25 in thebody of the drum 24and thus into the annular chamber-33.7 All the air passing into the inner tube 10, thereforeyeventually reaches the annular chamber 33 and therein is divided into as many sections as thereare compartments created by the partition wall 35, and

as the air passes upwardly and then outwardly to the flame the-passage of the air in any particular compartment is not influenced by extraneous conditions such as drafts and the like, thereby ensuring an even distribution of the air to all parts of the wick and causing substantially uniform combustion at all points in the flame whereby as will be understood the efliciency of the burner is materially enhanced. I

I claim as my invention:

1. In a liquid fuel burner having a pair of burner tubes adapted to receive a wick there between, an an distributor comprising a cylindrical member having spaced'apertures therein, a drum member having an inverted U-shaped flange at the upper end thereof and a plurality of spaced apertures in the wall -thereof,-said drum member surrounding a having spaced apertures in that portion thereof lying-beneath theannularspace between the cylinder and the drum and also spaced apertures in that portion thereof at the lower end of the space between the drum and the burner-tube, and a plurality' of radially placed partition walls in the annular space between the cylindrical memher and the drum, each partition wall being f in contact at its upper end with the adjacent portion of the spreader member and the in vertedU-shaped flange of the drumand connected to both the drum and the base for securing the partition wall in position and maintaining the drum and the base in place relatively to one another. V I

2. Ina liquid fuel burner having a pair of burner tubes adapted toreceive a wick therebetween, an air distributor, comprising a cylindrical member, a drum member surrounding a portion of said cylindrical member and providing an annular spacebetween the same and the cylindrical member, a base connecteclto the cylindrical member and, cooperating with one ofsaid burner tubes to support the air distributor, and a plurality of.

partition walls betweensaid cylindrical memher and said drum dividing said annular space into a plurality of independent compartinents.

3. In a liquid fuel burner having a pair of burner tubes adapted to receive a wick therebetwecn, an air distributor comprising a cylindrical member, a drum member surrounding a portion of said cylindrical member and providing an annular space between the same and the cylindrical member, a base connected to the cylindrical member and cooperating with one of said burner tubes to support the air distributor, and a plurality of radial partition walls extending the entire length of said drum member connected to said base and said drum between said cylindrical member and said drum.

4. In a liquid fuel burner having a pair of burner tubes adapted to receive a wick therebetween, an air distributor comprising a cylindrical member, a drum member surrounding a portion of the cylindrical member and providing an annular space between the same and the cylindrical member, a spreader connected to the upper end of the cylindrical member, a base connected to the lower end of the cylindrical member and cooperating with one of said burner tubes to support the air distributor, and a plurality of partition walls between said cylindrical member and said drum extending from said base to said spreader.

5. In a liquid fuel burner having a pair of burner tubes adapted to receive a wick therebetween, an air distributor comprising a cylindrical member, a drum member surrounding a portion of the cylindrical member and spaced therefrom to provide an annular space between the same and the cylindrical member, a spreader member secured to the upper end of the cylindrical member extending outwardly over and in spaced relation to the upper edge of said drum, and a plurality of partition walls between said cylindrical member and said drum having extensions lying between the upper edge of said drum and the lower surface of said spreader member.

6. In a liquid fuel burner having a pair of burner tubes adapted to receive a wick therebetween, an air distributor comprising a cylindrical member having spaced apertures therein, a druminember having an inverted U-shape flange at the upper end and a plurality of spaced apertures in the wall thereof, a spreader secured to the upper end of the cylindrical member extending over said U-shape flange in spaced relation thereto, and a plurality'of partition walls between said cylindrical member and said drum having extensions lying between said U-shape flange and the lower surface of said spreader.

Signed by me this 12th day of November 1926.

LEWIS T. WILCOX. 

